How to learn Computer Basic (Part 3)

What is Processor, Output Device and Storage? Today we are presenting here How to learn Computer Basic specially Processor, Output Device and Storage .

Processor

A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer.

The term processor has generally replaced the term central processing unit (CPU). The processor in a personal computer or embedded in small devices is often called a microprocessor.

Output Devices

Different type of output device as bellows:

1. Monitor

A monitor or a display is an electronic visual display for computers. The monitor comprises the display device, circuitry and an enclosure. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) thin panel, while older monitors use a cathode ray tube (CRT) about as deep as the screen size.

2. Printer

In computing, a printer is a peripheral which produces a representation of an electronic document on physical media such as paper or transparency film. Many printers are local peripherals connected directly to a nearby personal computer.

3. Projector

A video projector is an image projector that receives a video signal and projects the corresponding image on a projection screen using a lens system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other inconsistencies through manual settings.

4. Plotter

The plotter is an output device where a computer printer for printing vector graphics. In the past, plotters were used in applications such as computer-aided design, though they have generally been replaced with wide-format conventional printers.

5. Speaker

The computer speakers typically packaged with computer systems are small, plastic, and have mediocre sound quality. Some computer speakers have equalization features such as bass and treble controls.

Storage Devices

Primary Memory (Main Memory)

A. RAM (Random Access Memory/ Read-Write Memory)

Random-access memory (RAM) is a form of computer data storage. A random-access device allows stored data to be accessed quickly in any random order.

B. ROM (Read-only-memory)

Read-only memory (ROM) is a class of storage medium used in computers and other electronic devices. Data stored in ROM cannot be modified, or can be modified only slowly or with difficulty, so it is mainly used to distribute firmware (software that is very closely tied to specific hardware, and unlikely to need frequent updates).

Secondary Memory (Storage Devices)

Hard Disk (Local Disk)

Optical Disks: CD-R, CD-RW, DVD-R, DVD-RW

Pen Drive

Zip Drive

Floppy Disk

Memory Cards

External Hard Disk

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